Exploring Sound and Light Phenomena

Which of the following is a property of sound waves?

• Sound waves can travel through a vacuum.

• Sound waves are longitudinal waves.

• Sound waves are visible to the human eye.

• Sound waves do not require a medium to travel.

How is sound measured in decibels (dB)?

• By measuring the frequency of the sound wave.

• By measuring the amplitude of the sound wave.

• By measuring the speed of the sound wave.

• By measuring the wavelength of the sound wave.

Tags

NGSS.MS-PS4-1

What happens to light when it passes from air into water?

• It speeds up and bends away from the normal.

• It slows down and bends towards the normal.

• It continues in a straight line without bending.

• It speeds up and bends towards the normal.

Tags

NGSS.MS-PS4-2

If a sound wave has a high frequency, what can be said about its pitch?

• The pitch is low.

• The pitch is high.

• The pitch is medium.

• The pitch is unaffected by frequency.

Which of the following best describes refraction?

• The bouncing back of light from a surface.

• The bending of light as it passes from one medium to another.

• The spreading out of light waves.

• The absorption of light by a surface.

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NGSS.MS-PS4-2

What is the unit used to measure the intensity of sound?

• Hertz (Hz)

• Decibels (dB)

• Meters (m)

• Joules (J)

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NGSS.HS-PS4-5

Which of the following statements is true about the speed of sound?

• Sound travels faster in air than in water.

• Sound travels faster in water than in air.

• Sound travels at the same speed in all mediums.

• Sound cannot travel through solids.

Tags

NGSS.MS-PS4-2